HR: 0800h
AN: AE31A-0050    [Abstracts]
TI: Meteorological Context of RHESSI Terrestrial Gamma-ray Flashes
AU: * Hazelton, B J
EM: bhazelto@physics.ucsc.edu
AF: Physics Dept. and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, 1156 High St., Santa Cruz, CA 95064, United States
AU: Smith, D M
EM: dsmith@scipp.ucsc.edu
AF: Physics Dept. and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, 1156 High St., Santa Cruz, CA 95064, United States
AU: Splitt, M
EM: msplitt@fit.edu
AF: Dept. of Marine and Environmental Systems, Florida Institute of Technology, 150 West University Blvd., Melbourne, FL 32901, United States
AU: Lazarus, S M
EM: slazarus@fit.edu
AF: Dept. of Marine and Environmental Systems, Florida Institute of Technology, 150 West University Blvd., Melbourne, FL 32901, United States
AU: Dwyer, J R
EM: jdwyer@fit.edu
AF: Dept. of Physics and Space Sciences, Florida Institute of Technology, 150 West University Blvd., Melbourne, FL 32901, United States
AU: Rassoul, H K
EM: rassoul@fit.edu
AF: Dept. of Physics and Space Sciences, Florida Institute of Technology, 150 West University Blvd., Melbourne, FL 32901, United States
AU: Lay, E H
EM: erinlay@u.washington.edu
AF: Department of Earth and Space Sciences, University of Washington, 4000 15th Ave. NE, Seattle, Seattle, WA 98195, United States
AU: Holzworth, R H
EM: bobholz@ess.washington.edu
AF: Department of Earth and Space Sciences, University of Washington, 4000 15th Ave. NE, Seattle, Seattle, WA 98195, United States
AB: The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has detected over 750 Terrestrial Gamma-ray Flashes (TGFs). The RHESSI data provide a large database for statistical studies of TGF characteristics and production environments, such as location and storm type and evolution. We present a statistical comparison of the spectral characteristics and brightness of RHESSI TGFs detected over land and sea. We also examine the timing of TGF events with respect to the storm evolution. The development stage of the storm is estimated from the time sequence of cloud to ground sferics measured by the World Wide Lightning Location Network (WWLLN). Finally we attempt to localize a few TGFs by identifying isolated thunderstorm events that occur in the RHESSI footprint.
DE: 3304 Atmospheric electricity
DE: 3324 Lightning
DE: 3329 Mesoscale meteorology
SC: Atmospheric and Space Electricity [AE]
MN: 2007 Fall Meeting